table {
  width: 100%;
  border-collapse: collapse;
  color: darkcyan;
}
tr:nth-child(2n + 1) {
  background-color: whitesmoke;
}
td {
  text-align: center;
  vertical-align: 居中;
  padding: 10px;
  border-bottom: 3px solid aliceblue;
}
td.右边框 {
  border-right: 3px solid lightskyblue;
}
